On the evening of May 28, 1945, Dr. Federin from the Soviet Embassy came to visit me and handed me a letter from the USSR Academy of Sciences inviting me to attend the 220th anniversary commemorative conference. The meeting will be held in Moscow and Leningrad consecutively from 16 to 28 June, lasting for half a month. Scholars from all over the world, except for the fascist countries, were invited, and two from my country, the other was Mr. Ding Xilin. This is naturally a very glorious thing, and many years of longing have been unexpectedly satisfied.

My friends congratulated me, held a meeting to say goodbye, and set up a banquet to say goodbye, and I was busy for ten days. Especially Liqun, she is about to be busy with me. dragged the young three sons and one daughter (the eldest Han Ying was only six years old, Shu Ying was five years old, Shiying was four years old, and Min Ying was two years old), and he had to prepare my bags and run other affairs.

On 9 June, he left Chongqing on a US military plane and flew to Sujing via India and Iran. I thought I would be able to arrive by the 16th, but I was so delayed on the road that I didn't arrive in Moscow until the 25th. The celebration has been moved to Leningrad. Although I flew to Leningrad on the evening of the 26th, I only made it in time for the closing of the conference. It is a pity that many valuable academic presentations have not been heard, and the opportunity to formally celebrate them at the conference has been lost.

Mr. Ding, who was also invited, arrived later than I did, arriving in Moscow on 29 June. We joked with each other that we were all laggards, outsiders. This self-deprecation has an indescribable spicy taste. China's science is backward, relying on other people's means of transportation, even if you are a guest, you can't be someone else's crown.

But I calculated myself well, and received special preferential treatment in the USSR. I flew to Leningrad, Stalingrad, Tashkent and Samarkand in Central Asia; He also visited Tolstoy's former home, Yasnaya Polyana; visited a number of institutes, museums, factories, collective farms, universities, secondary schools, kindergartens; enjoyed drama, opera, puppet show, music, dancing, painting; I met many workers, peasants, scholars, writers, artists, and engineers. Fifty days in the Soviet Union. Although the period is not very long, it seems that there are more people who have lived there for fifty years.

I myself went to the Soviet Union with the spirit of Tang Seng learning scriptures and going to the west, and with such a good opportunity, I should learn more things and come back, but I am equally sorry. There was so much to learn from the USSR, the period was too short after all. My own preparation is too insufficient, especially because I can't understand the language, I have to rely on my friend's translation, and my ears are deaf, and I can't even listen to the translation completely. I'm really a bit of a "like entering Baoshan empty-handed" look. I am very sorry to have disappointed the expectations of my friends, especially the friendship of the Soviet people.

My friends were very concerned and asked me to give a report on various occasions, and I did it, and I did it over and over again. Friends can't be satisfied—in fact, I can't satisfy them, and want me to write something. I guess I still have some good information to keep. I now simply sort out my diary for the past dozens of days and use it as a celery. But before you get the blame, if you don't like it, you still can't be satisfied, and don't think that the Soviet Union is just this or only a little bit of something.